Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/clock/mediatek,mt8188-sys-clock.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: MediaTek System Clock Controller for MT8188 |
| 8 | |
| 9 | maintainers: |
| 10 | - Garmin Chang <garmin.chang@mediatek.com> |
| 11 | |
| 12 | description: | |
| 13 | The clock architecture in MediaTek like below |
| 14 | PLLs --> |
| 15 | dividers --> |
| 16 | muxes |
| 17 | --> |
| 18 | clock gate |
| 19 | |
| 20 | The apmixedsys provides most of PLLs which generated from SoC 26m. |
| 21 | The topckgen provides dividers and muxes which provide the clock source to other IP blocks. |
| 22 | The infracfg_ao provides clock gate in peripheral and infrastructure IP blocks. |
| 23 | The mcusys provides mux control to select the clock source in AP MCU. |
| 24 | The device nodes also provide the system control capacity for configuration. |
| 25 | |
| 26 | properties: |
| 27 | compatible: |
| 28 | items: |
| 29 | - enum: |
| 30 | - mediatek,mt8188-apmixedsys |
| 31 | - mediatek,mt8188-infracfg-ao |
| 32 | - mediatek,mt8188-pericfg-ao |
| 33 | - mediatek,mt8188-topckgen |
| 34 | - const: syscon |
| 35 | |
| 36 | reg: |
| 37 | maxItems: 1 |
| 38 | |
| 39 | '#clock-cells': |
| 40 | const: 1 |
| 41 | |
| 42 | required: |
| 43 | - compatible |
| 44 | - reg |
| 45 | - '#clock-cells' |
| 46 | |
| 47 | additionalProperties: false |
| 48 | |
| 49 | examples: |
| 50 | - | |
| 51 | clock-controller@10000000 { |
| 52 | compatible = "mediatek,mt8188-topckgen", "syscon"; |
| 53 | reg = <0x10000000 0x1000>; |
| 54 | #clock-cells = <1>; |
| 55 | }; |